Conveying system



- April 18, 1950 N. H. SANDBERG ET AL 2,504,228

CONVEYING SYSTEM riled Nov. 29, 1945 3 Sheets-Sheet 1 April 18, 1950 N. H. SANDBERGV ET AL 2,504,223

CONVEYING SYSTEM Filed Nov. 29, 1945 s Sheets-Sheet 2 5 Sheets-Sheet 3 April 18, 1950 N. H. SANDBERG ETWAL CONVEYING SYSTEM Filed Nov. 29, 1945 MZUZS The frame in also supports a pair of parallel shafts l and It. The shaft l5 supports a series of spaced rollers ll. The shaft it supports an elongated roller I9 which may cooperate with the rollers I! to draw the sheet through the cutting or slitting apparatus, knives l3 and I4.

A track or guide is supported on the frame It, substantially parallel to the axes of the vari-.

ous shafts described. This track or guide 20 acts as a support for the partition forming plates 2| which separate the stacks of blanks. The partition plates 2| are supported by brackets 22 which slidably engage the upper edge of the track or guide 26. The brackets 22 are held in adjusted position by hand adjustedsetscrews 23 or by any suitable clamping apparatus.

The movable conveyor platform D comprises a substantially rectangular frame 24 which.is supported by flanged rollers 25 and 26 mounted upon transversely extending shafts 21 and 29, and supported by suitable bearings such as 30 and 3|, secured to the lower surface of the frame 24. The flanged rollers 25 and 26 are engaged in a pair of parallel tracks 32 which guide the movement of the movable conveyor platform.

Corner posts 33 extend upwardly from the frame 24 to support a second rectangular frame 35. This frame 35 supports a pair of substantially parallel angle members 36, mounted in opposed relation near opposite ends of the frame 35. A series of parallel rollers 31 are supported by the angle members 36, the central shafts 39 of these various rollers extendingthrough the angle members 36 and being supported thereby.

A series of upright frame members 40 are adjustably secured to the frame 24 and to the frame 35, to extend upwardly above the level of the partition members 2|. These uprights 46 provide an abutment against which the various sheets may be stacked. The feed rollers I! and I9 feed the sheets through the slitters with some force, and the slit sheets slide into the compartments between adjacent partitions 2|. The movement of the sheets is halted by the upright abutments 40 which hold the sheets in proper stacked formation.

The conveyor platform D is of such a height 7 that it may extend partly under the splitting apparatus of the splitter A. The abutments 40 may be moved with the platform towards or away from the feed rollers l1 and I9 so as to receive sheets of varying lengths. Thus, the position of the platform may be adjusted to suit sheets of varying lengths as well as varying widths. I

In order to move the conveyor platform from one position to another, we provide a reversible electric motor 4| secured to the frame 24-. This motor 4| actuates a belt or chain 42 which connects a pulley or sprocket43 on the motor 4| to a pulley or sprocket 44 on the shaft 21. Accordingly, upon closing the circuit to the motor 4| the chain or belt 42 may operate in either direction to rotate the shaft 21 in a clockwise or counter-clockwise direction. The platform D may thus be moved into position adjacent the splitter A and beneath the partition plates 2|, or

may be moved into alignment with the conveyor B. 1

The conveyor B may be of any suitable or 1 shafts 50 of these rollers having their support in a vertical flange of each angle member 41. The rollers 49 are freely rotatable to enable the stacks of sheets to be readily moved upon the same.

The conveyor B in preferred form leads to the motor driven conveyor 5| of a blank forming apparatus or similar machine. The blanks are usually individually placed upon the driven conveyor leading to the blank forming machine manually. Thus, as the sheets of each stack are used up by placing the same upon the driven conveyor 5| another stack may be pushed into feeding position.

In the use of our apparatus the movable platform D is placed into position to receive sheets from the splitter A and the'knives of the splitter are adjusted to provide the proper width of sheet. The partition plates 2| are aligned with the knives so as to separate the adjacent stacks of sheets during the stacking operation. These partitions are important, as they prevent the sheets of one stack from becoming interleaved with the sheets of an adjacent stack.

When stacks of the proper height are attained, the movable platform D is moved into alignment with the conveyor B leading to the blank forming machine C. Movement of the platform is accomplished by closing the circuit to the drive motor 4!. When the movable conveyor section is aligned with the conveyor B the stacks of sheets may be easily pushed onto the conveyor B. The movable platform D may then be returned into its position in close proximity with the slitter A to receive more sheets.

In accordance with the patent statutes, we have described the principles of construction and operation of our conveyor system, and while we have endeavored to set forth the best bodiment thereof, We desire to have it understood that obvious changes may be made within the scope of the following claims without departing from the spirit of our invention.

- We claim:

1. A sheet conveying mechanism in combination with a sheet splitting apparatus and a blank forming apparatus, comprising a movable conveyor platform, means guiding said platform towards and away from said splitting apparatus, a conveyor leading to the blank forming apparatus, the directions of travel of said splitting apparatus and said conveyor being at right angles, said conveyor being aligned with said platform when the same is moved away from said splitting apparatus.

2. A sheet conveying apparatus for use in combination with a sheet splitter and a conveyor, the directions of travel thereof being at right angles, the apparatus comprising a movable conveyor platform movable towards or away from a sheet splitter, said platform being arranged to receive sheets from said splitter when moved adjacent the same, said conveyor being spaced from said splitter, said conveyor platform being movable into alignment with said conveyor when spaced from said splitter.

3. A sheet conveying apparatus for use in combination with a sheet splitter and a conveyor, the directions of travel thereof being at right angles, the apparatus comprising a movable platform, means movably supporting said platform, means guiding the movement of said platform towards and away from said splitter, said platform when in position adjacent said splitter being in position to receive sheets therefrom, said conveyor being offset from said platform when in.

, sheet receiving position, said platform being movable into alignment with said conveyor when moved away from said splitter.

4. A sheet conveying apparatus for use in combination with a sheet splitter and a conveyor, the directions of travel thereof being at right angles, the said conveyor comprising a movable platform, conveyor rollers mounted upon the said platform, means guiding said platform for movement towards or away from said splitter, said platform being adapted to receive sheets fed through said splitter when positioned adjacent the splitter, said sheets dropping upon said'conveyor rollers, said conveyor being offset from said platform when said platform is in sheet receiving position, said platform being movable into alignment with said conveyor.

5. A sheet conveying apparatus for use in combination with a splitter and conveyor, the apparatus comprising a movable table movable toward or away from said splitter, said table being positioned to receive sheets from said splitter when positioned adjacent the same, said table being movable into alignment with said conveyor, and partition means which separate the slit sheets supported above said table when said table is adjacent said splitter.

6. A sheet conveying apparatus in combination with a splitter and conveyor, said apparatus comprising a movable conveyor table movable toward and away from said splitter, said table being adapted to receive split sheets from said splitter when positioned adjacent the same, partition members supported above said table, said partitions holding said stacks in proper position upon said table when said table is adjacent said splitter, said table being movable into alignment with said conveyor, said table being moved beyond the ends of said partitions when aligned with said conveyor.

'7. A sheet conveying apparatus for use in combination with a sheet splitter and a conveyor, said apparatus comprising a movable table movable towards and away from said splitter, partition members which separate the split sheets extending vertically above said table and fixed relative to said splitter, said table being offset relative to said conveyor when in sheet receiving position adjacent said splitter, said table being movable into alignment with said conveyor, said table being movable beyond the ends of said partition members.

8. A conveying apparatus for use in combination with a sheet splitter and conveyor, said apparatus comprising a movable table movable into and out of sheet receiving position relative to said splitter, vertical partition members which table to separate the split sheetsfi-nto' separate stacks, said table being movable beyond the ends of said partition members, said table when in the latter position aligning with said'conveyor.

9. A conveying apparatus for use in combination with a sheet feeding device and a sheet receiving conveyor, the apparatus comprising a conveyor table, having a series of substantially parallel rollers supported thereon, means movably supporting said table to move toward or away from said sheet feeding device, a series of vertically extending partitions secured adjacent said sheet feeding apparatus to separate stacks of the sheets from each other as the sheets are fed and stacked upon said rollers on said table, means for moving said table from a position adjacent said feeding apparatus to a point beyond the ends of said partition members, said conveyor comprising a series of rollers substantially parallel to the rollers on said table, said conveyor being positioned beyond the ends of said partition members to become aligned with said table when said table is moved beyond said partition members.

10. A conveying device for use in combination with a sheet feeding apparatus and a sheet receiving conveyor, said device including a movable table movable from a sheet receiving position adjacent said feeding apparatus to a position remote therefrom, a series of transversely adjustable partition members supported adjacent said sheet feeding apparatus to guide the said sheets into stacked relationship upon said table, said table in remote position being beyond the ends of said partition members and aligned with said conveyor.

11. A sheet stacking apparatus comprising a series of transversely adjustable splitting knives, feed rollers adjacent said splitting knives to pull the sheets through said splitting knives, a support for receiving the split sheets, and partition members transversely adjustable to align with said splitting knives and to guide the split sheets into stacked formation.

NELS H. SANDBERG. HENRY O. RONNING.

REFERENCES CITED Name Date Saylor June 30, 1885 Number 

